Adjective
1. having great power or force or potency or effect;
"the most powerful government in western Europe""his powerful arms""a powerful bomb""the horse's powerful kick""powerful drugs""a powerful argument"2. strong enough to knock down or overwhelm;
"a knock-down blow"3. having the power to influence or convince;
"a cogent analysis of the problem""potent arguments"4. (of a person) possessing physical strength and weight; rugged and powerful;
"a hefty athlete""a muscular boxer""powerful arms"5. displaying superhuman strength or power;
"herculean exertions"